CONVERTING FRACTIONS, ADDING FRACTIONS, SUBTRACTING

PreAlgebraDummy15

New member
Joined
Nov 6, 2005
Messages
38
for converting decimals to fractions or mixed numbers, would this be right:

0.426

0.426/1000 = 426/1000 (divided by 2) = 213/500??

Also for adding these fractions:
19/30 - 22/75= 95/150- 44/150= 51/150??

sorry but I have another!

(-2 1/8) (-5 1/7)= -10 52/56??
 
0.426

0.426/1000 = 426/1000 (divided by 2) = 213/500??


...correction for you

426/1000 - you drop the decimal form as you have divided by 1000
and then divide by 2 as you have done to get 213/500

Second problem is correct - well done.

(-2 1/8) (-5 1/7)= -10 52/56

(-17/8) (-36/7)

= (17 x 36) /(8 x 7)

=612 / 56

= 10 (52 /56)

= 10 (13/14)
(note the two negative signs form a positive value)
 
Top